Re: failed assertion related to realtime section

[Roman Kononov <kononov@ftml.net>]

[-- Attachment #1: Type: text/plain, Size: 447 bytes --]

On 2009-07-15 07:23, Olaf Weber wrote:
> Can you provide:
> 
>  - the options used to create the filesystem
>  - the mount options of the filesystem
>  - (a summary of) the commands run

The attached bash script (xfs-doit) produces the attached output (out.txt). 
The kernel messages are attached as well (rt-assert.txt). The kernel was 
compiled with the attached configuration (config.tar.bz2). The /dev/sda and 
/dev/sdb are 75GB SATA drives.


[-- Attachment #2: out.txt --]
[-- Type: text/plain, Size: 1544 bytes --]

+ uname -a
Linux 10.10.10.102 2.6.30.1.xdi #7 SMP Wed Jul 15 16:04:29 CDT 2009 x86_64 x86_64 x86_64 GNU/Linux
+ cd /tmp
+ fuser -mk /dev/sda
+ umount /dev/sda
umount: /dev/sda: not mounted
+ mkfs.xfs -L test -f -i size=2k -l lazy-count=1 -d size=1g -r size=10g,extsize=32m,rtdev=/dev/sdb /dev/sda
meta-data=/dev/sda               isize=2048   agcount=8, agsize=32768 blks
         =                       sectsz=512   attr=0
data     =                       bsize=4096   blocks=262144, imaxpct=25
         =                       sunit=0      swidth=0 blks, unwritten=1
naming   =version 2              bsize=4096
log      =internal log           bsize=4096   blocks=2560, version=1
         =                       sectsz=512   sunit=0 blks, lazy-count=1
realtime =/dev/sdb               extsz=33554432 blocks=2621440, rtextents=320
+ mkdir -p test
+ mount -o noikeep,largeio,noatime,nodiratime,swalloc,nobarrier,rtdev=/dev/sdb /dev/sda test
+ mkdir test/data test/rltm
+ /usr/sbin/xfs_io -c 'chattr +r' -c 'chattr +t' test/rltm
+ for file in '{0..1}'
+ dd if=/dev/zero of=test/rltm/0 bs=1048576 count=100 seek=10
+ for file in '{0..1}'
+ dd if=/dev/zero of=test/rltm/1 bs=1048576 count=100 seek=10
+ wait
tmp/xfs-doit: line 17:   834 Segmentation fault      dd if=/dev/zero of=test/rltm/$file bs=$((1024*1024)) count=100 seek=10
tmp/xfs-doit: line 17:   835 Segmentation fault      dd if=/dev/zero of=test/rltm/$file bs=$((1024*1024)) count=100 seek=10
+ umount test
umount: /tmp/test: device is busy
umount: /tmp/test: device is busy
+ exit

[-- Attachment #3: rt-assert.txt --]
[-- Type: text/plain, Size: 4517 bytes --]

XFS: correcting sb_features alignment problem
XFS mounting filesystem sda
Assertion failed: xfs_trans_get_block_res(tp) > 0, file: /home/stuff/base/linux-2.6.30.1/fs/xfs/xfs_bmap.c, line: 5602
------------[ cut here ]------------
kernel BUG at /home/stuff/base/linux-2.6.30.1/fs/xfs/support/debug.c:109!
invalid opcode: 0000 [#1] SMP
last sysfs file: /sys/devices/pci0000:00/0000:00:08.0/host2/target2:0:0/2:0:0:0/block/sdb/dev
CPU 0
Modules linked in: ib_mthca sata_nv
Pid: 834, comm: dd Not tainted 2.6.30.1.xdi #7
RIP: 0010:[<ffffffff8039f9da>]  [<ffffffff8039f9da>] assfail+0x1a/0x20
RSP: 0018:ffff88013b159ca8  EFLAGS: 00010296
RAX: 000000000000007a RBX: 0000000000007fff RCX: 0000000000000000
RDX: ffff880028022000 RSI: 0000000000000046 RDI: ffffffff8071a854
RBP: 0000000000006e00 R08: 0000000000000000 R09: 0000000000000002
R10: 0000000000000000 R11: ffffffff803cfda0 R12: ffff88013f5772c0
R13: ffff88013f5772f8 R14: ffff88013f577318 R15: ffff88013b015400
FS:  00007fa7409206e0(0000) GS:ffff880028022000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 00007fe258d1d000 CR3: 000000013b17b000 CR4: 00000000000006e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process dd (pid: 834, threadinfo ffff88013b158000, task ffff88013e828b20)
Stack:
 0008000000000000 ffffffff80345e9c ffff88013b159d08 ffff88013b159d88
 ffff88013f577570 000000000000000e 0000000000006e00 0000000000001286
 0000000000000000 0000000000000002 0000000000000001 ffff88013b1b2030
Call Trace:
 [<ffffffff80345e9c>] ? xfs_bunmapi+0xc5c/0x11e0
 [<ffffffff8036dd50>] ? xfs_itruncate_finish+0x2b0/0x5d0
 [<ffffffff8038eae1>] ? xfs_free_eofblocks+0x271/0x2c0
 [<ffffffff80396f50>] ? xfs_file_release+0x10/0x20
 [<ffffffff8029ed22>] ? __fput+0xc2/0x210
 [<ffffffff8029b8d6>] ? filp_close+0x56/0x90
 [<ffffffff8029b9a1>] ? sys_close+0x91/0xd0
 [<ffffffff8020bdeb>] ? system_call_fastpath+0x16/0x1b
Code: 08 01 00 00 00 e8 27 19 03 00 48 83 c4 18 c3 66 90 89 d1 48 83 ec 08 48 89 f2 31 c0 48 89 fe 48 c7 c7 e8 d9 5e 80 e8 06 c7 1a 00 <0f> 0b eb fe 66 90 48 83 ec 28 48 89 1c 24 4c 89 6c 24 18 89 fb
RIP  [<ffffffff8039f9da>] assfail+0x1a/0x20
 RSP <ffff88013b159ca8>
---[ end trace 88cf42faf5c1e431 ]---
Assertion failed: xfs_trans_get_block_res(tp) > 0, file: /home/stuff/base/linux-2.6.30.1/fs/xfs/xfs_bmap.c, line: 5602
------------[ cut here ]------------
kernel BUG at /home/stuff/base/linux-2.6.30.1/fs/xfs/support/debug.c:109!
invalid opcode: 0000 [#2] SMP
last sysfs file: /sys/devices/pci0000:00/0000:00:08.0/host2/target2:0:0/2:0:0:0/block/sdb/dev
CPU 0
Modules linked in: ib_mthca sata_nv
Pid: 835, comm: dd Tainted: G      D    2.6.30.1.xdi #7
RIP: 0010:[<ffffffff8039f9da>]  [<ffffffff8039f9da>] assfail+0x1a/0x20
RSP: 0018:ffff88013b131ca8  EFLAGS: 00010296
RAX: 000000000000007a RBX: 0000000000007fff RCX: 0000000000000000
RDX: ffff880028022000 RSI: 0000000000000046 RDI: ffffffff8071a854
RBP: 0000000000006e00 R08: 0000000000000000 R09: 0000000000000002
R10: 0000000000000000 R11: ffffffff803cfda0 R12: ffff88013f577680
R13: ffff88013f5776b8 R14: ffff88013f5776d8 R15: ffff88013b015400
FS:  00007fe258d206e0(0000) GS:ffff880028022000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 00000037f3ed1060 CR3: 000000013b17a000 CR4: 00000000000006e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process dd (pid: 835, threadinfo ffff88013b130000, task ffff88013e82ac80)
Stack:
 0008000000000000 ffffffff80345e9c ffff88013b131d08 ffff88013b131d88
 ffff88013f577930 000000000000000e 0000000000006e00 0000000000001286
 0000000000000000 0000000000000002 0000000000000001 ffff88013b1b2368
Call Trace:
 [<ffffffff80345e9c>] ? xfs_bunmapi+0xc5c/0x11e0
 [<ffffffff8036dd50>] ? xfs_itruncate_finish+0x2b0/0x5d0
 [<ffffffff8038eae1>] ? xfs_free_eofblocks+0x271/0x2c0
 [<ffffffff80396f50>] ? xfs_file_release+0x10/0x20
 [<ffffffff8029ed22>] ? __fput+0xc2/0x210
 [<ffffffff8029b8d6>] ? filp_close+0x56/0x90
 [<ffffffff8029b9a1>] ? sys_close+0x91/0xd0
 [<ffffffff8020bdeb>] ? system_call_fastpath+0x16/0x1b
Code: 08 01 00 00 00 e8 27 19 03 00 48 83 c4 18 c3 66 90 89 d1 48 83 ec 08 48 89 f2 31 c0 48 89 fe 48 c7 c7 e8 d9 5e 80 e8 06 c7 1a 00 <0f> 0b eb fe 66 90 48 83 ec 28 48 89 1c 24 4c 89 6c 24 18 89 fb
RIP  [<ffffffff8039f9da>] assfail+0x1a/0x20
 RSP <ffff88013b131ca8>
---[ end trace 88cf42faf5c1e432 ]---

[-- Attachment #4: xfs-doit --]
[-- Type: text/plain, Size: 632 bytes --]

#!/bin/bash
data_dev=/dev/sda
rltm_dev=/dev/sdb
set -x
uname -a
cd /tmp
fuser -mk $data_dev
umount $data_dev
mkfs.xfs -L test -f -i size=2k -l lazy-count=1 -d size=1g -r size=10g,extsize=32m,rtdev=$rltm_dev $data_dev || exit
mkdir -p test || exit
mount -o noikeep,largeio,noatime,nodiratime,swalloc,nobarrier,rtdev=$rltm_dev $data_dev test || exit
mkdir test/data test/rltm || exit
/usr/sbin/xfs_io -c "chattr +r" -c "chattr +t" test/rltm || exit
for file in {0..1}; do
	dd if=/dev/zero of=test/rltm/$file bs=$((1024*1024)) count=100 seek=10 &
done
wait
umount test || exit
xfs_repair -nv -r $rltm_dev $data_dev || exit
echo "done"

[-- Attachment #5: config.tar.bz2 --]
[-- Type: application/x-bzip, Size: 7570 bytes --]

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